PostgreSQL can cosplay as a full-text search engine. It doesn't have the features or fidelity of ElasticSearch or...
Method delegation in Rails can help you to keep your code organized and avoid deep call chains (law of demeter...
There are several ways to run a single spec. I usually copy the spec file path with the line number...
Sometime we've seen this error when executing e.g. bundle exec rake asset:precompile: double free or corruption (out)
Haml renders HTML with indentation reflecting the nesting level of elements. When it comes to white-space preserving content, this...
It is possible to add custom http header to request made by the docker CLI client. This can be used...
Given there is a user with an attachable avatar: class User < ApplicationRecord has_one_attached :avatar end
Given there is a user with an attachable avatar: class User < ApplicationRecord has_one_attached :avatar end
The key to unlocking the full potential of LLMs in coding lies in crafting precise prompts. The main challenge is...
Ubuntu 24 added some guarding for Python packages which no longer allows installing applications through pip on system level. Instead...
Here is a bash script that I use to auto-configure displays on Ubuntu 24.04 with Xorg. Background
When debugging slow SQL queries, it’s helpful to understand the database engine's query plan. Whenever you execute a...
Using ffmpeg, you can easily re-encode a video to reduce its file size. Command Do it like this:
Hint If you are using our opscomplete.com hosting we can set all environment variables mentioned below for your deployment on...
If you need to pre-generate a scram-sha256 password hash for use with postgres, e.g. for using it with...
In Slack, the settings dialog only offers a fixed selection of fonts. You can use any font you like using...
This decision tree describes how to use the alt attribute of the element in various situations. For some types of...
Rails wraps your parameters into an interface called StrongParameters. In most cases, your form submits your data in a nested...
Elements can be hidden and shown by toggling the display property. However, this is not animatable, so we often turn...
The new params.expect method in Rails 8 improves parameter filtering, addressing issues with malformed input and enhancing security. It provides...
Bundler allows you to specify the name of the Gemfile you want to bundle with the BUNDLE_GEMFILE environment variable...
Also see the list of IRB commands. Switching the context Changes the "default receiver" of expressions. Can be used to...
$ cat ~/.config/mimeapps.list # open Archives with FileRoller and not extract them immediately, wich is the new behaviour when clicking archives in...